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Org Biomol Chem
; 8(3): 706-12, 2010 Feb 07.
Article
in English
| MEDLINE
| ID: mdl-20090990
ABSTRACT
Lewis acid promoted elimination of p-toluenesulfinc acid from sulfonyl indazoles and sulfonyl indoles generates the corresponding iminium ion that reacts with allyltin reagents, silyl enol ethers, silyl ketene acetals and electron-rich aromatics leading to functionalized indazole and indole derivatives.